Relay protection exit matrix detection equipment

Abstract

The invention discloses relay protection exit matrix detection equipment which comprises a plurality of detection probes arranged on a detected device and sampling processing circuits respectively connected with the detection probes, and each sampling processing circuit is respectively connected with a test control and data processing part through an isolation circuit; the output end of the test control and data processing part is respectively connected with a state information display interface and a storage communication module; each sampling processing circuit has a multi-channel synchronous detection function, can detect information of multi-channel outlet pressing plates at the same time, and transmits the information to the data processing center through the isolation circuit so that mutual interference is reduced; and the test control data processing part processes the received data and transmits the processed data to the state information display part, the test state information of each pressing plate is displayed and maintained in real time, and the amplitude and width of a pulse signal are judged and displayed by a voltage value and an indicating lamp. And the data information can be automatically stored in the mobile memory after the test is completed.

Description

technical field [0001] The invention relates to the technical field of electric power detection, in particular to a relay protection outlet matrix detection device. Background technique [0002] At present, for the detection of the relay protection outlet matrix, it mainly relies on the relay protection tester switch input contact, but only the tripping backup contact can be measured, and the outlet matrix cannot be comprehensively measured, especially in the complex 220kV conventional substation. In the case of outlet matrix, such as 220kV line protection, main transformer protection, bus differential protection and other calibration work, the problem is more prominent; another common method is to use a universal meter to measure the outlet pressure plate one by one, but it needs to repeat the simulation many times The protection action situation is not only large and complicated, low in efficiency, and has potential safety hazards and errors and omissions, but also can onl...

AI Technical Summary

Problems solved by technology

[0002] At present, for the detection of the relay protection outlet matrix, it mainly relies on the relay protection tester switch input contact, but only the tripping backup contact can be measured, and the outlet matrix cannot be comprehensively measured, especially in the complex 220kV conventional substation. In the case of outlet matrix, such as 220kV line protection, main transformer protection, bus differential protection and other calibration work, the problem is more prominent; another common method is to use a universal meter to measure the outlet pressure plate one by one, but it needs to repeat the simulation many times The protection action situation is not only large and complicated, low in efficiency, and has potential safety hazards and errors and omissions, but also can only see the data flashing by, and cannot know the amplitude and width of the pulse voltage. The detection data is not accurate and comprehensive, and there is no Accurate data record keeping

Therefore, it will also affect the effect of the detection of the relay protection outlet matrix, leaving hidden dangers for the relay protection to fail to operate correctly. Once the power grid fails, it will directly endanger the stable operation of the power grid

Images